20539314 has 24 divisors (see below), whose sum is σ = 44832060. Its totient is φ = 6795648.

The previous prime is 20539307. The next prime is 20539357. The reversal of 20539314 is 41393502.

It can be written as a sum of positive squares in 2 ways, for example, as 19954089 + 585225 = 4467^2 + 765^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1699 + ... + 6630.

Almost surely, 2^20539314 is an apocalyptic number.

20539314 is an abundant number, since it is smaller than the sum of its proper divisors (24292746).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20539314 is a wasteful number, since it uses less digits than its factorization.

20539314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8474 (or 8471 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 20539314 is about 4532.0319945914. The cubic root of 20539314 is about 273.8600258293.

The spelling of 20539314 in words is "twenty million, five hundred thirty-nine thousand, three hundred fourteen".